terrijones ChelseaGuarriello Hi, that was my old account (Owl25) I can't seem to access it for some reason.
I did find a solution to this in this guide here:
Read that guide by Oberlo but you basically just find a new supplier of the same product. Push it to your store as you would adding a new product as normal. Then from that product in the import list, you select 'override product' from the right hand drop down menu (where you'd normally delete the product etc).
And then match it - you then have the option to pick the product already in your shopify store you wanted to replace with a new supplier (override).
Everything stays the same on your store end except your variants change. I usually don't add new pictures but you can do that also Oberlo will pop that option up as you use the override feature.
However just check your variants arrangements etc once you're done in shopify product page after you override as that is what does change. You just need to check your variants are all ok. And that's it.
But yeah follow that guide for a more detailed step-by-step how to.
So every time your product goes out of stock (or it vanishes from Aliexpress) just find a new supplier OR just wait it out if you want to for awhile first because often even ones that have disappeared/or run out of stock they come back again without me having to do anything after a bit of time just leaving it, I had just never got around to changing it and it fixed itself in time.. because the supplier obviously re-listed the item again exactly the same. So sometimes they disappear but they then come back on your end after waiting a bit. It's odd, but yeah otherwise just change suppliers as shown in that guide linked above.